Synthesis and Characterization of Lanthanum Carbide Nanotubes
Lanthanum carbide nanotubes have been synthesized by d.c. arc evaporation (~20-30 V, ~200 Amp) of lanthanum metal (90 wt.%)-loaded graphite rod in a helium atmosphere (665 mbar). To explore the possibility of formation of lanthanum carbide nanotubes, the experiments were carried out with lanthanum metal in different concentrations (i.e., 30, 50, 70, and 90 wt.%) in the graphite rod. The as-synthesized samples were characterized by transmission electron microscopy and X-ray diffractometry. Lanthanum carbide nanotubes (LCNTs) with a diameter of ~65 to 95 nm and a length of 0.2 to 1.5 m were obtained in this study.
Keywords: ARC EVAPORATION; LANTHANUM CARBIDE; LANTHANUM CARBIDE NANOTUBES; NANORODS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTOMETRY
Document Type: Research Article
Affiliations: Department of Physics, Banaras Hindu University, Varanasi-221005, India
Publication date: 01 February 2002
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